var morning : Texture2D;
var noon : Texture2D;
var night : Texture2D;

function Start ()
{
	var hour = System.DateTime.Now.Hour;
	
	if(6 <= hour && hour < 12)
	{
		guiTexture.texture = morning;
	}
	else if(12 <= hour && hour <= 18)
	{
		guiTexture.texture = noon;
	}
	else
	{
		guiTexture.texture = night;
	}
}